Introduction
Elon Musk gave a keynote speech titled "Becoming a Multi-Planetary Species" at the International Astronautical Congress in 2017. Musk shared the development process and future plans of SpaceX space exploration technology. At the same time, he systematically elaborated on the technical plan for human immigration to Mars. Musk said, "Building a permanent human city on Mars , making humans a multi-planet civilization, and bringing human civilization among the stars - this may be the greatest dream since the birth of human civilization."
This The speech became famous around the world for Musk's big dreams and his enthusiasm for space exploration and colonizing Mars. The 39 slides in Musk’s speech are therefore known as the greatest slides in human history.
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slide interpretation
outline
The overall classification of the slides is three parts:
- Part 1: Current progress
- Part 2: BFR application scenarios
- Part 3: Going to Mars
PPT Page 1: Cover. The content is very simple, the theme of the speech: BecomingMulti-Planet Species.
PPT Page 2:
The vision of SpaceX and Elon Musk, this vision is also on SpaceX’s official website.
“People want to wake up in the morning hoping that the future will be desirable – that’s what makes a multi-planetary civilization a species. It’s about having faith in the future and believing that it will be better than the past. I can't think of anything more exciting than going among the stars."
Yes, why not have faith in this future? It would be a depressing future if humans were trapped on Earth forever, and if all those dreamy sci-fi movie things didn't happen.
PPT Page 3: Part 1 Current Progress
PPT Page 4
Liquid oxygen tank test: test pressure 2.3 atmospheres, cross carbon fiber material, capacity 1000 cubic meters, can store up to 1200 tons of liquid oxygen.
PPT Page 5
engine test: 42 ignition tests with a total length of more than 1200 seconds; the longest single test exceeds 100 seconds, and a typical Mars landing takes 40 seconds; the test pressure reaches 200 atmospheres.
PPT Page 6:
Power-controlled landing has become perfect: as of October 15, 2017, the Falcon 9 rocket has been successfully recovered 19 times; the reliability of single-engine landing is very high; precise landing will be able to return to the launch pad, Landing braces will no longer be needed.
PPT Page 7: The number of SpaceX rocket launches is increasing year by year.
PPT page 8:
Dragon spacecraft update: Dragon spacecraft 1 successfully demonstrated the automatic approach and docking with the space station . Crew Dragon 2 will dock directly without the assistance of a robotic arm. Thermal shield technology is optimized to handle the extremely high temperatures returned to the atmosphere.
PPT Page 9:
rocket comparison:
In terms of size: Man, Falcon 9, Falcon Heavy, and BFR (later Starship ). The BFR is 9 meters in diameter and 106 meters high.
Judging from the recycling level: Falcon 1: Not recyclable. Falcon 9 and Falcon Heavy: Partial recovery (first stage rocket and fairing, only second stage rocket is not recoverable). BFR: Fully recycled.
Looking at the payload: the BFR will reach an amazing 150 tons.
PPT Page 10:
BFR Overview: BFR will be SpaceX’s final and only technical solution and can be used for a variety of purposes. This is the only way to make BFR affordable. The resources previously used for Falcon 9 and Falcon Heavy will be concentrated on BFR.
BFR has a total length of 106 meters, of which the propeller length is 58 meters and the thrust is 52,700 Nm.
PPT Page 11:
The starship is 48 meters long and 9 meters in diameter. The BFR has a dead weight of 85 tons, and the propellant (fuel) weighs 1,100 tons. The maximum launch load is 150 tons and the maximum return load is 50 tons.
PPT Page 12:
BFR The general structure: upper row: engine, fuel tank, starship; lower row: delta wing .
PPT Page 13:
The pressurized cabin has a volume of 825 cubic meters, which is larger than the Airbus A380.
Mars journey configuration: 40 cabins and a lot of public space.
PPT Page 14:
Fuel tank: 240 tons methane , 860 tons liquid oxygen.
PPT Page 15:
Raptor engine: combustion chamber pressure 250Bar, variable thrust range 20%-100%; 2 sea level engines and 4 vacuum engines.
PPT Page 16: Orbital Fueling
PPT Page 17:
rocket carrying capacity comparison (when launched into low-Earth orbit), the BFR still has the maximum payload while being fully reusable.
PPT Page 18:
Single launch cost. Since the BFR can be fully recycled and reused, despite its maximum load, the launch cost will still be lower than that of all rockets.
PPT pages 19-22: Orbital fueling greatly increases the payload of Mars launch
PPT page 23: Part 2 BFR application scenarios
PPT page 24: Satellite launch
PPT page 25: International Space Station round trip
The size of the starship can also be seen in this picture. When the starship is docked at the International Space Station, it will be close to the size of the main part of the International Space Station. Really looking forward to it.
PPT Page 26: The lunar mission
BFR landed on the moon and had enough fuel to return to Earth.
PPT Page 27: Moon Base
PPT Page 28: Part 3 Going to Mars
PPT Page 29: Main Steps of Earth-to-Fire Round Trip
PPT Page 30: Conducting Mars Atmosphere and Landing
PPT page 31:
schedule (Musk’s Radical schedule): In 2022, the cargo spacecraft will go to Mars, and the infrastructure required for energy supply and life support will be established in the early stage; in 2024, the cargo and manned spacecraft will go to Mars to establish fuel production facilities and establish an early base. to facilitate subsequent expansion.
PPT page 32-37: Mars base construction and expansion
PPT page 38:
uses BFR for point-to-point transportation on the earth, reaching most places on the earth in 30 minutes.
PPT Page 39: Thank you for watching
Summary
Of course, the most important thing is that Elon Musk will not just stop at PPT. Starship Testing is advancing testing and rapid iteration with admirable efficiency. Musk's boasts usually have to be realized. For example, Falcon 9 has given birth to ten rockets.
refer to
PPT material: https://slidelive.cn/slide/1/desc
video address: https://www.youtube.com/watch?v=tdUX3ypDVwI
